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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/watcher-troubleshooting.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/watcher-troubleshooting.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/watcher-troubleshooting.html" rel="nofollow" target="_blank">../en/watcher-troubleshooting.html</a></div>
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<strong>重要</strong>: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html" rel="nofollow">当前版本文档</a>。
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<h2 class="title">
<a id="watcher-troubleshooting"></a>Troubleshooting Watcher<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/x-pack/docs/en/watcher/troubleshooting.asciidoc">edit</a><a class="xpack_tag" href="https://www.elastic.co/subscriptions"></a>
</h2>
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<h3>
<a id="_dynamic_mapping_error_when_trying_to_add_a_watch"></a>Dynamic mapping error when trying to add a watch<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/x-pack/docs/en/watcher/troubleshooting.asciidoc">edit</a>
</h3>
<p>If you get the <em>Dynamic Mapping is Disabled</em> error when you try to add a watch,
verify that the index mappings for the <code class="literal">.watches</code> index are available. You can
do that by submitting the following request:</p>
<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">GET .watches/_mapping</pre>
</div>
<div class="console_widget" data-snippet="snippets/1299.console"></div>
<p>If the index mappings are missing, follow these steps to restore the correct
mappings:</p>
<div class="olist orderedlist">
<ol class="orderedlist">
<li class="listitem">
Stop the Elasticsearch node.
</li>
<li class="listitem">
Add <code class="literal">xpack.watcher.index.rest.direct_access : true</code> to <code class="literal">elasticsearch.yml</code>.
</li>
<li class="listitem">
Restart the Elasticsearch node.
</li>
<li class="listitem">
<p>Delete the <code class="literal">.watches</code> index:</p>
<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">DELETE .watches</pre>
</div>
<div class="console_widget" data-snippet="snippets/1300.console"></div>
</li>
<li class="listitem">
<p>Disable direct access to the <code class="literal">.watches</code> index:</p>
<div class="olist orderedlist">
<ol class="orderedlist">
<li class="listitem">
Stop the Elasticsearch node.
</li>
<li class="listitem">
Remove <code class="literal">xpack.watcher.index.rest.direct_access : true</code> from <code class="literal">elasticsearch.yml</code>.
</li>
<li class="listitem">
Restart the Elasticsearch node.
</li>
</ol>
</div>
</li>
</ol>
</div>
<h3>
<a id="_unable_to_send_email"></a>Unable to send email<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/x-pack/docs/en/watcher/troubleshooting.asciidoc">edit</a>
</h3>
<p>If you get an authentication error indicating that you need to continue the
sign-in process from a web browser when Watcher attempts to send email, you need
to configure Gmail to
<a href="https://support.google.com/accounts/answer/6010255?hl=en" class="ulink" target="_top">Allow Less Secure Apps to access your account</a>.</p>
<p>If you have two-step verification enabled for your email account, you must
generate and use an App Specific password to send email from Watcher. For more
information, see:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Gmail: <a href="https://support.google.com/accounts/answer/185833?hl=en" class="ulink" target="_top">Sign in using App Passwords</a>
</li>
<li class="listitem">
Outlook.com: <a href="http://windows.microsoft.com/en-us/windows/app-passwords-two-step-verification" class="ulink" target="_top">App passwords and two-step verification</a>
</li>
</ul>
</div>
<h3>
<a id="_watcher_not_responsive"></a>Watcher not responsive<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/x-pack/docs/en/watcher/troubleshooting.asciidoc">edit</a>
</h3>
<p>Keep in mind that there’s no built-in validation of scripts that you add to a
watch. Buggy or deliberately malicious scripts can negatively impact Watcher
performance. For example, if you add multiple watches with buggy script
conditions in a short period of time, Watcher might be temporarily unable to
process watches until the bad watches time out.</p>
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